Concrete hollow square pile centrifugal casting mold

Abstract

The invention discloses a concrete hollow square pile centrifugal casting mold, which comprises an upper mold body and a lower mold body. An upper stress-relieved arc is arranged on the inner side of one side of the upper mold body; the inner side of the other side of the upper mold body is a straight side; a lower stress-relieved arc is arranged on the inner side of one side of the lower mold body opposite to the upper stress-relieved arc; and the inner side of the other side of the lower mold body is a straight side. The upper mold body and the lower mold body are closed to be fixedly connected through a locking assembly; a joint of the upper mold body and the lower mold body is formed outside the upper stress-relieved arc and the lower stress-relieved arc; the cross section of a cavityformed by closing the upper mold body and the lower mold body is quadrangular; a plurality of running wheels which make the mold rotate on a centrifugal machine are arranged on the upper mold body and the lower mold body; and a crane hanger for hoisting and a fixing device for preventing the mold from rolling in the process of removing the mold are arranged on the upper mold body and the lower mold body.

Description

technical field [0001] The invention relates to a concrete hollow square pile centrifugal forming mold. Background technique [0002] There are many pile foundation materials used in construction projects in the market, mainly including pipe piles and square piles. [0003] Pipe pile: It is cylindrical. It rotates at high speed on the centrifuge through the centrifugal pipe mold, so that the concrete material is shaped along the outer edge of the pipe mold cavity and performs high-speed centrifugal movement, and finally centrifuged into concrete pipe piles. This process is very mature and has entered large-scale industrial production. The disadvantage is that the concrete has high strength, high brittleness and low bearing capacity. [0004] The main square pile currently on the market, the patent number is: ZL200710068545.6, the name is: "Prestressed high-strength concrete square pile and its manufacturing method and forming mold", the patent number is: ZL99116046.0, the ...

AI Technical Summary

Problems solved by technology

Although the centrifugally formed prestressed concrete square pile has higher friction and bearing capacity with the ground than the pipe pile, there are still some problems that need to be solved, such as: it often falls off during lifting, rolls when removing the formwork, The screws are easy to fall off during molding, and the four corners are easy to be damaged when demolding, etc.

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